ledger: fixed with older boost

pkgs/applications/office/ledger/default.nix

@@ -1,22 +1,21 @@
-{ stdenv, fetchgit, cmake, boost, gmp, mpfr, libedit, python
+{ stdenv, fetchFromGitHub, cmake, boost, gmp, mpfr, libedit, python
 , texinfo, gnused }:
 
-let
-  version = "3.1.1";
-in
-
-stdenv.mkDerivation {
+stdenv.mkDerivation rec {
   name = "ledger-${version}";
+  version = "3.1.1";
 
-  # NOTE: fetchgit because ledger has submodules not included in the
-  # default github tarball.
-  src = fetchgit {
-    url = "https://github.com/ledger/ledger.git";
-    rev = "refs/tags/v${version}";
+  src = fetchFromGitHub {
+    owner  = "ledger";
+    repo   = "ledger";
+    rev    = "v${version}";
     sha256 = "1j4p7djkmdmd858hylrsc3inamh9z0vkfl98s9wiqfmrzw51pmxp";
+    fetchSubmodules = true;
   };
 
-  buildInputs = [ cmake boost gmp mpfr libedit python texinfo gnused ];
+  buildInputs = [ boost gmp mpfr libedit python texinfo gnused ];
+
+  nativeBuildInputs = [ cmake ];
 
   enableParallelBuilding = true;
 
@@ -29,10 +28,10 @@ stdenv.mkDerivation {
     cp -v "$src/lisp/"*.el $out/share/emacs/site-lisp/
   '';
 
-  meta = {
+  meta = with stdenv.lib; {
     homepage = http://ledger-cli.org/;
     description = "A double-entry accounting system with a command-line reporting interface";
-    license = stdenv.lib.licenses.bsd3;
+    license = licenses.bsd3;
 
     longDescription = ''
       Ledger is a powerful, double-entry accounting system that is accessed
@@ -41,8 +40,7 @@ stdenv.mkDerivation {
       their data, there really is no alternative.
     '';
 
-    platforms = stdenv.lib.platforms.all;
-    maintainers = with stdenv.lib.maintainers; [ the-kenny jwiegley ];
-    broken = true;
+    platforms = platforms.all;
+    maintainers = with maintainers; [ the-kenny jwiegley ];
   };
 }